Europa 4-Line Jacks or Better Video Poker Online - download and play. No installation needed. The object of 4-Line Jacks or Better is to obtain a five-card poker hand that contains a winning combination. It differs from original Jacks or Better, since it has four lines of cards. Each line uses a different deck of cards. Each line is treated as a separate hand for the determination of any wins. The better your hand, the bigger the payout.